A privilege escalation vulnerability in Juniper Networks Junos OS devices configured with dual Routing Engines (RE), Virtual Chassis (VC) or high-availability cluster may allow a local authenticated low-privileged user with access to the shell to perform unauthorized configuration modification. This issue does not affect Junos OS device with single RE or stand-alone configuration. This issue affects Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S14; 12.3X48 versions prior to 12.3X48-D86, 12.3X48-D90; 14.1X53 versions prior to 14.1X53-D51; 15.1 versions prior to 15.1R7-S6; 15.1X49 versions prior to 15.1X49-D181, 15.1X49-D190; 15.1X53 versions prior to 15.1X53-D592; 16.1 versions prior to 16.1R4-S13, 16.1R7-S6; 16.2 versions prior to 16.2R2-S10; 17.1 versions prior to 17.1R2-S11,
The following software releases have been updated to resolve this specific issue: 12.3R12-S14, 12.3X48-D86, 12.3X48-D90, 14.1X53-D51, 15.1R7-S6, 15.1X49-D181, 15.1X49-D190, 15.1X53-D592, 16.1R4-S13, 16.1R7-S6, 16.2R2-S10, 17.1R2-S11, 17.1R3-S1, 17.2R1-S9, 17.2R3-S3, 17.2X75-D110, 17.2X75-D44, 17.3R3-S6, 17.4R2-S6, 17.4R3, 18.1R3-S7, 18.2R2-S5, 18.2R3-S1, 18.2X75-D12, 18.2X75-D33, 18.2X75-D411, 18.2X75-D420, 18.2X75-D60, 18.3R1-S5, 18.3R1-S6, 18.3R2-S1, 18.3R2-S3, 18.3R3, 18.4R1-S4, 18.4R1-S5, 18.4R2-S1, 18.4R3, 19.1R1-S2, 19.1R2, 19.2R1-S1, 19.2R2, 19.3R1, and all subsequent releases.
Disallow unprivileged authenticated users access to Junos shell. Limit shell access to only trusted administrators.
| Product | Vulnerable range | Fixed version | Advisory |
|---|---|---|---|
| Juniper Networks Junos OS | >=12.3<12.3R12-S14 | 12.3R12-S14 | advisory ↗ |
| Juniper Networks Junos OS | >=12.3X48<12.3X48-D86, 12.3X48-D90 | 12.3X48-D86, 12.3X48-D90 | advisory ↗ |
| Juniper Networks Junos OS | >=14.1X53<14.1X53-D51 | 14.1X53-D51 | advisory ↗ |
| Juniper Networks Junos OS | >=15.1<15.1R7-S6 | 15.1R7-S6 | advisory ↗ |
| Juniper Networks Junos OS | >=15.1X49<15.1X49-D181, 15.1X49-D190 | 15.1X49-D181, 15.1X49-D190 | advisory ↗ |
| Juniper Networks Junos OS | >=15.1X53<15.1X53-D592 | 15.1X53-D592 | advisory ↗ |
| Juniper Networks Junos OS | >=16.1<16.1R4-S13, 16.1R7-S6 | 16.1R4-S13, 16.1R7-S6 | advisory ↗ |
| Juniper Networks Junos OS | >=16.2<16.2R2-S10 | 16.2R2-S10 | advisory ↗ |
| Juniper Networks Junos OS | >=17.1<17.1R2-S11, 17.1R3-S1 | 17.1R2-S11, 17.1R3-S1 | advisory ↗ |
| Juniper Networks Junos OS | >=17.2<17.2R1-S9, 17.2R3-S3 | 17.2R1-S9, 17.2R3-S3 | advisory ↗ |
| Juniper Networks Junos OS | >=17.3<17.3R3-S6 | 17.3R3-S6 | advisory ↗ |
| Juniper Networks Junos OS | >=17.4<17.4R2-S6, 17.4R3 | 17.4R2-S6, 17.4R3 | advisory ↗ |
| Juniper Networks Junos OS | >=18.1<18.1R3-S7 | 18.1R3-S7 | advisory ↗ |
| Juniper Networks Junos OS | >=18.2<18.2R2-S5, 18.2R3-S1 | 18.2R2-S5, 18.2R3-S1 | advisory ↗ |
| Juniper Networks Junos OS | >=18.3<18.3R1-S5, 18.3R2-S1, 18.3R3 | 18.3R1-S5, 18.3R2-S1, 18.3R3 | advisory ↗ |
| Juniper Networks Junos OS | >=18.4<18.4R1-S4, 18.4R2-S1, 18.4R3 | 18.4R1-S4, 18.4R2-S1, 18.4R3 | advisory ↗ |
| Juniper Networks Junos OS | >=19.1<19.1R1-S2, 19.1R2 | 19.1R1-S2, 19.1R2 | advisory ↗ |
| Juniper Networks Junos OS | >=19.2<19.2R1-S1, 19.2R2 | 19.2R1-S1, 19.2R2 | advisory ↗ |